As we reported ... once Shaq found out about Jahmel's condition he took down the post, got in touch with Jahmel and apologized. He tweeted ... "Made a new friend today when I called and apologized to Jahmel Binion. Great dude. #alwayslearning #MYBADCUZ."

Jahmel has now filed a defamation suit against Shaq, Waka, and Utah Jazz guard Trey Burke -- who allegedly threw in his own insults over social media. The lawsuit points out that more than 8.4 million people saw the insults.

23-year-old Jahmel told the Macomb Daily in Michigan ... "When they said sorry, I felt like they were saying it to get the pressure off of them for being considered ‘bad people.’”

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